Pipe-wrench.



W. E. URQUHART.

4 PIPE WRENCH.

1,075,878, v I' i 'Patented 0ct.14,1913.

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WILLIAM E. URQUHART, OF ELK RIVER, DA-IO, ASSIGNGE OF ONE-FIFTII TO CLYDE IB. PERRY, OF El-K RIVER, IDAHO.

PIPE-WRENCH.

Specification of Letters Patent.

ltlatented ct. 14, 1913.

Application filed February 24, 1913. Serial No. 750,393.

T0 all 107mm t may concern Be it known that l, VILLIAM E. URQU' HART, a citizen of the United States, residing at Elk River, in the county of Clearwater and State of Idaho, have invented a new and useful Pipe-Wronch, of which the following is a speciiication.

@ne object of the present invention is to provide novel means for actuating the movable jaw of a wrench to adjust the movable jaw with respect to the work and to effect a release of the movable jaw from the work.

Another object of the invention is to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

l.With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing Figure 1 shows the invention in side elevation, parts being sectioned; and Fig. 2 is a section on the line 2-2 of Fig. 1.

ln carrying out the present invention, the wrench is shown as comprising a handle 1 equipped upon one edge with ears 2. Beyond the ears 2 the handle 1 is pierced by an opening 3 and beyond the opening 3 is a flared opening 4. At its end, and at one side, the handle 1 is provided with a fixed jaw 5. In one edge of the handle 1 and adjacent the fixed jaw 5 there is formed a recess 6.

The invention further includes a hollow casing 7 provided with a lug 8 which enters the recess 6, there being a pin 9 terminally mounted in the handle 1, the pin 9 extending across the recess 6 and passing through the lug 8, so as to afford a pivotally mounting for the casing 7. The casing 7 is provided with a central recess 10 and there are openings 11 at the ends of the casing, which openings communicate with the recess. The casing 7 at a point diametrically opposite to the pivotal mount-ing of the casing, is provided with a depression 12. r1`he depression 12 is rounded and is adapted to receive the rounded head 14 of the lever 15 fulcrumed on a pin 16 terminally supported in the ears 2. The lever 15 extends in the same direction as the handle 1 and terminates in a thumb piece 17.

A retaining member 1S is inserted into one end of the opening 3, the retaining member being provided at its outer edge with an enlarged head 19 which bears against one end of the handle 1. A retractile spring 2O is attached at one end to theJ retaining member' 1S and lies partially in the opening 3, one end of the spring 20 being attached as indicated at 21 to the lever 1o between the fulcrum 16 of the lever and the rounded head 14 which lits into the depression 12 of the casing 7.

A movable jaw 22 lies approximately parallel to the handle 1, the working face of the jaw 22, indicated at 23, being inclined slightly so as to enhance the grip upon the material 26 which is engaged with the movable jaw and with the fixed jaw 5. Projecting from the movable aw 22 and located approximately at right angles thereto is a shank 24. rlhe shank 24 extends through the flared opening 4 in the handle 1 and through the openings 11 in the casing 7, the shank extending across the recess 10 in the casing 7. The shank 24 is threaded as indicated at 25 to receive a nut 27 which is located in the recess 10 of the casing 7. By rotating the nut 27 the shank 24 may be moved longitudinally, so as to cause the working face 23 of the movable jaw to cooperate approximately with the fixed jaw 5 in engaging the material 26. The movable jaw 22 may be adjusted upon the work by tilting the lever 15 upon its fulcrum 16, the head 14 of the lever cooperating with the recess or depression 12 and effecting a tilting of the casing 7 upon its pivotal mounting 9. By manipulating the lever 15, the casing 7 may be tilted and the movable j aw 22 may be released from the work. The spring 20 serves to swing one end of the lever 15 inwardly, thereby effecting a tilting of the casing 7 and effecting a swinging of the shank 24 and the movable aw 22, the movable aw being thus held yieldingly in engagement with the work 26.

Having thus described the invention, what is claimed is A wrench comprising a handle provided with a transverse opening and including a fixed jaw; a movable jaw coperating with the iiXed jaw and provided with a shank eX- tended across the handle; a nut threaded on the shank; a easing in which the nut is engaged, the casing being pivoted to the handle; a lever fulcrumed intermediate its ends on the handle and pivotally connected at one end with the easing; a retraotile spring located in the opening and terminating in an eye surrounding the lever between the fulcrurn of the lever and the casing-engaged end of the lever, the eye oonstituting means whereby the spring may be removed from the lever and be renewed, without separating the lever from the easing or from the handle, the lever being increased in diameter between the eye and the fulcrum of the lever, thereby to prevent the eye from sliding along the lever and to prevent the spring from flexing laterally in the opening and binding against the walls in the opening 20 when the free end of the lever is pressed; and a securing element united with the spring and bearing against the handle.

In testimony that l claim the foregoing as my own, l have hereto afXed my signature 25 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

